JP2000002879A - Device for assembling liquid crystal panel and its method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembling device and method for a liquid crystal display panel with which a uniform display is obtained without generating irregular color in the liquid crystal display part. SOLUTION: The assembling device is equipped with a pair of chucks 3, 3' holding at least opposite sides of a glass substrate 1 on which liquid crystal is dropped and a glass substrate 2 arranged being confronted therewith, and a pair of spacers 4, 4' holding the two glass substrates 1, 2 keeping a gap in vacuum. Out of pairs of chucks 3, 3' and spacers 4, 4' the chuck 3 and the spacer 4 are disengaged and then the two glass substrates 1, 2 are again held with the chuck 3. Subsequently the other chuck 3' and spacer 4' are disengaged and then the two glass substrates 1, 2 are again held with the other chuck 3' and led to a combining position and are stuck with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an apparatus and method for assembling a liquid crystal display panel, and more particularly to an apparatus and method for assembling a glass substrate.

[0002]

2. Description of the Related Art A conventional liquid crystal display panel assembling apparatus will be described below with reference to the drawings.

FIG. 2 is a cross-sectional view schematically showing a main part of a conventional liquid crystal display panel assembling apparatus.
(B), (c), and (d) show the procedure for assembling the liquid crystal display panel. In the figure, 1 is a first glass substrate, 2 is a second glass substrate, 3 is a vertically movable chuck,
4 is a horizontally movable spacer, 5 is a vacuum chamber, 6 is a glass holder, and the chuck 3 and the spacer 4
Are provided as a pair at positions facing left and right, and operate as a pair.

The operation will be described below.
As shown in FIG. 2A, the first and second glass substrates 1, 2 aligned with high precision are held by a chuck 3 via a spacer 4, and liquid crystal is dropped on the first glass substrate 1. ing. Here, in order to prevent the inside of the vacuum chamber 5 from being in a vacuum state and to prevent the first and second glass substrates 1 and 2 from shifting from each other, as shown in FIG. 2C, the chuck 3 is then moved upward as shown in FIG. 2C to open it, and finally the spacer 4 is removed as shown in FIG. Are bonded together.

[0005]

However, in such a configuration, since the first and second glass substrates are pressed by the glass press, color unevenness may occur in the liquid crystal display portion, or the first and second glass substrates may be pressed. There has been a problem that the sealing resin scattered between the glass substrates is not uniformly crushed.

An object of the present invention is to solve the above-mentioned conventional problems and to provide an apparatus and method for assembling a liquid crystal display panel capable of obtaining a uniform display without causing color unevenness in a liquid crystal display portion. And

[0007]

According to the present invention, there is provided a liquid crystal display panel assembling apparatus, comprising: a pair of glass substrates on which liquid crystal is dropped and at least opposite sides of a glass substrate disposed at a position facing the glass substrate in a vacuum; Chucks and these two
A pair of spacers for holding the glass substrates with a gap therebetween; removing one of the pair of chucks and spacers from the pair of chucks and spacers; re-holding the pair of chucks and spacers; The chuck and the spacer are removed, the two glass substrates are held again by the other chuck, the two glass substrates are guided to a bonding posture, and these are bonded together.

According to the present invention, two glass substrates can be bonded to each other while holding the alignment accuracy without pressing the glass substrates.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. Note that the same reference numerals are used for the same parts as those of the conventional one.

FIG. 1 is a sectional view schematically showing the structure of a main part of an embodiment of an apparatus for assembling a liquid crystal display panel according to the present invention, in which FIG. 1 (a), (b), (c) and (d) are shown. ), (E)
Shows a procedure for assembling the liquid crystal display panel. In the figure,
1 is a first glass substrate, 2 is a second glass substrate, 3,
3 'is a vertically movable chuck, 4 and 4' are horizontally movable spacers, 5 is a vacuum chamber, and the chucks 3, 3 'and spacers 4, 4' are arranged at positions facing left and right. And configured to operate independently.

The operation will be described below.
The first and second glass substrates 1 and 2 aligned with high precision are held by chucks 3 and 3 'via spacers 4 as shown in FIG. Is dripping. This state is the same as the above-mentioned conventional one. Here, the inside of the vacuum chamber 5 is evacuated, one chuck 3 is moved upward as shown in FIG. 1 (b) and opened, and then one spacer 4 is removed as shown in FIG. 1 (c). , The chuck 3 as shown in FIG.
In addition, the chuck 3 ′ is moved upward to open it, and finally the spacer 4 ′ is pulled out and held again by the chuck 3 ′.
In this state, the first and second glass substrates 1 and 2 are bonded together.

As described above, according to the present embodiment, a pair of chucks and spacers that operate independently can be attached to each other without affecting the high-precision alignment between the first and second glass substrates. It can be guided to the alignment position and can be bonded with high accuracy without pressing down the glass substrate as in the conventional case, so that color unevenness occurs in the liquid crystal display portion and the glass substrate is scattered between the first and second glass substrates. There is no possibility that the sealing resin to be crushed becomes not uniform.

[0013]

As described above, according to the present invention, a pair of chucks and spacers are used to guide the two glass substrates to a bonding posture without affecting the high-precision alignment between the first and second glass substrates. Therefore, the glass substrate can be bonded with high accuracy, and an advantageous effect that uniformity of display is maintained without color unevenness occurring in the liquid crystal display portion can be obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view schematically showing a main part configuration in an embodiment of a liquid crystal display panel assembling apparatus according to the present invention.

FIG. 2 is a cross-sectional view schematically showing a main part configuration of a conventional liquid crystal display panel assembling apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st glass substrate 2 2nd glass substrate 3,3 'chuck 4,4' spacer 5 vacuum chamber 6 glass press

Claims (3)

[Claims] A pair of chucks for holding at least opposite sides of a glass substrate on which liquid crystal is dropped and a glass substrate disposed at a position facing the glass substrate in a vacuum;
A pair of spacers for holding the glass substrates with a gap therebetween; removing one of the pair of chucks and spacers from the pair of chucks and spacers; re-holding the pair of chucks and spacers; An assembling apparatus for a liquid crystal panel, wherein a chuck and a spacer are removed, the two glass substrates are held again by the other chuck, the two glass substrates are guided to a bonding posture, and these are bonded together. 2. The liquid crystal panel assembling apparatus according to claim 1, wherein the pair of chucks and the pair of spacers operate independently. 3. A step of holding, in a vacuum, a glass substrate on which liquid crystal has been dropped and a glass substrate disposed at a position facing the glass substrate with a gap maintained by a pair of chucks and spacers. Removing one of the spacers and the spacer from among the spacers and re-holding by the one chuck; removing the other chuck and the spacer and re-holding by the other chuck to bring the two glass substrates into a bonded posture; A method for assembling a liquid crystal panel, comprising: a step of bonding two glass substrates.